9478643 has 2 divisors, whose sum is σ = 9478644. Its totient is φ = 9478642.

The previous prime is 9478633. The next prime is 9478681. The reversal of 9478643 is 3468749.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9478643 - 2⁴ = 9478627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9478643.

It is not a weakly prime, because it can be changed into another prime (9478633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4739321 + 4739322.

It is an arithmetic number, because the mean of its divisors is an integer number (4739322).

Almost surely, 2^9478643 is an apocalyptic number.

9478643 is a deficient number, since it is larger than the sum of its proper divisors (1).

9478643 is an equidigital number, since it uses as much as digits as its factorization.

9478643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 9478643 is about 3078.7404892261. The cubic root of 9478643 is about 211.6323505104.

The spelling of 9478643 in words is "nine million, four hundred seventy-eight thousand, six hundred forty-three".